I was on the seventh floor, opposite the Barnabas the Barmy tapestry in the left corridor, and I had decided to test one of the most interesting secrets I’d learned about Hogwarts.
I walked past the wall three times, back and forth, while concentrating on a particular thought.
I’d heard about the Room of Requirement before, of course, but knowing about something and personally testing it were two entirely different things.
I wanted to understand its limitations.
What could it actually create?
What couldn’t it create?
How did it decide what I needed?
And, most importantly, could I exploit it?
The wall changed.
A door appeared.
I smiled.
“Well, that answers the first question.” I opened the door and stepped inside.
The room was empty, which wasn’t particularly surprising considering I’d deliberately approached it without thinking about anything specific beyond testing its capabilities.
I decided to try something more interesting.
I concentrated on modern technology: computers, electronic equipment, advanced machines, and even things like rocket-launch systems.
If the Room of Requirement could simply materialise whatever I wanted, then this could potentially be one of the most absurdly useful places in Hogwarts.
I walked back out.
Then I repeated the process.
Three times past the wall.
The door appeared.
I opened it.
Nothing.
No computers.
No electronic equipment.
No modern machinery.
I frowned.
“Interesting.” I left again and repeated the process, this time concentrating on something much simpler: magical books.
The room appeared almost immediately.
When I entered, I found myself standing inside what was essentially a miniature magical library.
Shelves filled the walls, packed with books.
I immediately walked toward one of them and pulled it from the shelf, examining it carefully.
It was real enough to touch and read, but there was something subtly strange about it.
I opened another book, then another, testing the room’s creations.
Interesting.
Very interesting.
I left the room again.
Another attempt.
This time I imagined a training facility.
The room changed accordingly.
Training dummies appeared.
Magical practice targets materialised.
There were areas designed for spell practice, spaces large enough for dueling, and equipment that could be used for physical training.
I stared around the room for several seconds.
Then I grinned.
“Now we’re getting somewhere.” I continued experimenting.
I tested different rooms.
A library.
A classroom.
A relaxing study.
A training hall.
A combination of several different things.
Each time, the Room of Requirement adapted to whatever I needed.
Eventually, I settled into a room that combined everything I wanted.
There was a comfortable study area with a desk and chair, bookshelves along one wall, several training statues and magical practice targets positioned throughout the larger section of the room, and enough open space for me to practise spells without accidentally destroying a bookshelf.
I sat down and began writing notes about everything I’d discovered.
After several experiments, I thought I’d identified the Room of Requirement’s most important limitation.
It couldn’t simply create anything.
It could create things that had already existed within Hogwarts.
That explained why it couldn’t produce modern technology.
Computers, advanced machinery, rocket equipment, and similar objects had never been brought into the castle.
The Room couldn’t materialise something that Hogwarts had never encountered.
But books?
That was a completely different story.
Books had been entering Hogwarts for centuries.
Magical books.
Ancient books.
Textbooks.
Research journals.
Family records.
Potentially even books from the Restricted Section.
Anything that had physically existed within the castle at some point could potentially be reproduced by the Room of Requirement.
My eyes widened as the implications hit me.
“That’s a massive loophole.” If my theory was correct, I didn’t actually need to somehow sneak into the Restricted Section every time I wanted to study something.
I simply needed to know what I wanted.
Then I could ask the Room of Requirement to provide it.
Of course, there were still limitations.
The objects produced by the room weren’t necessarily the original objects, and I suspected they weren’t truly identical in every magical respect.
There was also the peculiar issue that anything produced inside the Room couldn’t simply be carried away permanently.
Once I left, the materialisation would eventually cease to be relevant, and I couldn’t simply walk out carrying a newly created artifact and keep it forever.
But that wasn’t necessarily a problem.
I didn’t need to own the books.
I only needed to read them.
And with my eidetic memory?
One reading was enough.
I leaned back in my chair.
The Room of Requirement had just become one of the most valuable resources available to me at Hogwarts.
My training hall.
My private library.
My research laboratory.
And potentially my gateway into centuries of magical knowledge that I otherwise wouldn’t be allowed to access.
The more I thought about it, the more useful it became.
I could create a training environment for practicing combat magic without anyone watching.
I could create specialized spaces for studying Transfiguration or Charms.
I could recreate books that had entered Hogwarts centuries ago.
I could potentially research obscure magical theories that had disappeared from the modern curriculum.
And nobody needed to know.
As far as everyone else was concerned, I was simply Tom Riddle, an exceptionally studious first-year who spent a lot of time in the library.
They didn’t need to know that I’d discovered a secret room where I could potentially access centuries of magical knowledge.
I looked around my newly created study and training hall.
I smiled.
This was going to be useful.
Very useful.
And considering I’d only been at Hogwarts for a few weeks, I had a feeling I was going to discover a lot more secrets before the year was over.